Drip tape manufacturing process
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 16, 2003
Grant Date -
N/A
app pub date -
Nov 9, 2000
filing date -
Apr 18, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of forming tubular irrigation drip tape includes the steps of a) extruding a web of material having a pair of longitudinally extending, substantially parallel marginal edges; b) heating a center area of the web between and substantially parallel to the marginal edges utilizing a first focused infrared heating device; c) applying one or more secondary flow path components to the center area; d) heating the marginal edges, utilizing a second and third focused infrared heating device; e) folding the web such that the marginal edges overlap to form a seam; and f) applying pressure to the seam.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | Total Patents |
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NELSON IRRIGATION CORPORATION | WALLA WALLA, WA | 77 |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Bren, Theodore J | Walla Walla, WA | 2 | 61 |
Harrold, Charles R | Walla Walla, WA | 7 | 65 |
Cited Art Landscape
Patent Info | (Count) | # Cites | Year |
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4473191 Drip irrigation system employing flow regulation | 44 | 1982 | |
4430020 Drip irrigation hose | 30 | 1982 | |
4642152 Drip irrigation system employing flow regulation | 29 | 1984 | |
4749535 Method and apparatus for forming profiled plastic products involving extrusion, roller shaping and cutting | 10 | 1986 | |
5181532 Flow control | 12 | 1992 | |
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4984739 Drip irrigation hose | 32 | 1988 | |
5123984 Method and apparatus for forming ports in drip irrigation hose | 34 | 1990 | |
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5324379 Method and apparatus for producing drip irrigation conduit | 21 | 1993 | |
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5282916 Method and apparatus for making drip irrigation devices | 24 | 1992 | |
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5688072 Agricultural drip tape | 8 | 1995 | |
6120634 Method and apparatus for forming agricultural drip tape | 20 | 1997 | |
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4874132 Drip irrigation apparatus | 22 | 1983 | |
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5022940 Process of making a drip irrigation conduit | 61 | 1989 | |
5122044 Apparatus for making a drip irrigation conduit | 18 | 1990 | |
5207386 Flow emitter units moulds for use in the manufacture thereof | 24 | 1991 | |
5324371 Process for producing a drip irrigation conduit | 30 | 1993 | |
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4555282 Method of and means for bonding synthetic resin profiled fasteners to film substrate | 68 | 1983 | |
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4880167 Irrigation hose with linear turbulent flow emitter | 30 | 1988 | |
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5282578 Self-protecting irrigation hose and method | 28 | 1993 | |
5333793 Drip irrigation hose with pressure compensation and method for its manufacture | 22 | 1993 | |
5458712 Process for forming drip irrigation hose with pressure compensation | 12 | 1994 | |
5522551 Drip irrigation hose and method for its manufacture | 25 | 1994 | |
5634595 Drip irrigation hose and method for its manufacture | 12 | 1996 | |
5722601 Drip irrigation hose and method of its manufacture | 17 | 1996 | |
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4722759 Apparatus for fabricating drip irrigation tape | 33 | 1985 | |
5246171 Drip irrigation tape including a series of alternately offset elongated chambers | 19 | 1992 | |
5318657 Drip irrigation tape and method of manufacture | 22 | 1993 | |
5387307 Drip irrigation tape and method of manufacture | 11 | 1994 | |
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4323533 Rotary forming of articles | 30 | 1980 | |
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* 4702787 Process for making drip irrigation lines | 19 | 1983 | |
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5271786 Method and apparatus for producing pipes for drip irrigation | 31 | 1991 | |
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5076498 Irrigation tape and method of producing same | 8 | 1989 | |
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* 5522954 Non-contact bonding of plastics | 21 | 1994 | |
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5163622 Drip irrigation line and method of making same | 26 | 1990 | |
5203503 Drip irrigation lines | 31 | 1991 | |
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* 6350500 Tubular composite containers having folded unsupported film liners | 3 | 1999 |
Patent Citation Ranking
Forward Cite Landscape
Patent Info | (Count) | # Cites | Year |
---|---|---|---|
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9743595 Drip emitter | 0 | 2009 | |
9485923 Elastomeric emitter and methods relating to same | 6 | 2012 | |
9872444 Drip emitter | 0 | 2013 | |
9877440 Elastomeric emitter and methods relating to same | 0 | 2013 | |
D811179 Emitter part | 0 | 2014 | |
9883640 Methods and apparatus for transporting elastomeric emitters and/or manufacturing drip lines | 0 | 2014 | |
9877442 Drip line and emitter and methods relating to same | 0 | 2016 | |
9877441 Elastomeric emitter and methods relating to same | 0 | 2016 | |
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* 2005/0258,279 Pressure compensating drip tape and related method | 13 | 2004 | |
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7108205 Drip irrigation system employing parallel adjacent flowpaths | 29 | 2005 | |
* 2006/0196,977 DRIP IRRIGATION SYSTEM EMPLOYING PARALLEL ADJACENT FLOWPATHS | 0 | 2005 |
Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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